Please confirm the question is x = (-7x^2 - 1) / (x + 4)
if that is the case, then
x * (x + 4) = -7x^2 - 1
x^2 + 4x = -7x^2 -1
8x^2 + 4x + 1 = 0
which does not have any real solution
Edit - much easier question to evaluate the expression (x^2 -1) / (x + 4) when x=-7
(-7^2 - 1) / (-7 + 4)
= (49 -1 ) / -3
= 48 / -3
= -16
Answer:
C
Step-by-step explanation:
Your median should be 40 in this since you’re using a box and whisker plot.
447/250
is the answer to the question
Answer:
-2.25
Step-by-step explanation:
9(1-x) = 27Y
9-9x =27y
-9x -27y = -9 multiply all terms by -1
9x +27y =9 equation (1)
x-y= -11/2 equation (2)
by solving 2 equations
x= -3.875
y= 1.625
∴ x+ y = 1.625 +(-3.875) = -2.25
